C#实现office文档转换为PDF或xps的一些方法

这段时间一直在研究office文档转为PDF或xps格式的方法。查找了一些资料。

一下是我所知道的一些方法

代码支持任意office格式

需要安装office 2007 还有一个office2007的插件OfficeSaveAsPDFandXPS

下载地址

[url]http://www.microsoft.com/downloads/details.aspx?FamilyId=4D951911-3E7E-4AE6-B059-A2E79ED87041&displaylang=en[/url]

这是一个微软官方出的office插件。

http://vdisk.weibo.com/s/ENxtv

安装好之后，打开VS,以VS2005为例

新建windows应用程序项目

添加以下com组件的引用

Microsoft Word 12.0 Object Library

Microsoft PowerPoint 12.0 Object Library

Microsoft Excel 12.0 Object Library

------------------------------------------------------

using Word = Microsoft.Office.Interop.Word;
using Excel = Microsoft.Office.Interop.Excel;
using PowerPoint = Microsoft.Office.Interop.PowerPoint;

using Microsoft.Office.Core;

我们可以使用一个枚举类型来决定生成文件的类型

Word.WdExportFormat wd = Microsoft.Office.Interop.Word.WdExportFormat.wdExportFormatPDF;

Excel.XlFixedFormatType excelType = Microsoft.Office.Interop.Excel.XlFixedFormatType.xlTypePDF;
PowerPoint.PpSaveAsFileType ppType = Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType.ppSaveAsPDF;

这里Word跟Excel我使用了ExportAsFixedFormat,PowerPoint我使用了SaveAs方法。

对于Word跟PowerPoint效果是一样的，只是SaveAs方法支持的格式更多。

但是Excel似乎不支持SaveAs方法，呵呵

----------------

Word转换方法

privateboolConvert(stringsourcePath,stringtargetPath, Word.WdExportFormat exportFormat)
{
boolresult;
objectparamMissing = Type.Missing;
Word.ApplicationClass wordApplication =newWord.ApplicationClass();
Word.Document wordDocument =null;
try
{
objectparamSourceDocPath = sourcePath;
stringparamExportFilePath = targetPath;

Word.WdExportFormat paramExportFormat = exportFormat;
boolparamOpenAfterExport =false;
Word.WdExportOptimizeFor paramExportOptimizeFor =
Word.WdExportOptimizeFor.wdExportOptimizeForPrint;
Word.WdExportRange paramExportRange = Word.WdExportRange.wdExportAllDocument;
intparamStartPage = 0;
intparamEndPage = 0;
Word.WdExportItem paramExportItem = Word.WdExportItem.wdExportDocumentContent;
boolparamIncludeDocProps =true;
boolparamKeepIRM =true;
Word.WdExportCreateBookmarks paramCreateBookmarks =
Word.WdExportCreateBookmarks.wdExportCreateWordBookmarks;
boolparamDocStructureTags =true;
boolparamBitmapMissingFonts =true;
boolparamUseISO19005_1 =false;

wordDocument = wordApplication.Documents.Open(
refparamSourceDocPath,refparamMissing,refparamMissing,
refparamMissing,refparamMissing,refparamMissing,
refparamMissing,refparamMissing,refparamMissing,
refparamMissing,refparamMissing,refparamMissing,
refparamMissing,refparamMissing,refparamMissing,
refparamMissing);

if(wordDocument !=null)
wordDocument.ExportAsFixedFormat(paramExportFilePath,
paramExportFormat, paramOpenAfterExport,
paramExportOptimizeFor, paramExportRange, paramStartPage,
paramEndPage, paramExportItem, paramIncludeDocProps,
paramKeepIRM, paramCreateBookmarks, paramDocStructureTags,
paramBitmapMissingFonts, paramUseISO19005_1,
refparamMissing);
result =true;
}
finally
{
if(wordDocument !=null)
{
wordDocument.Close(refparamMissing,refparamMissing,refparamMissing);
wordDocument =null;
}
if(wordApplication !=null)
{
wordApplication.Quit(refparamMissing,refparamMissing,refparamMissing);
wordApplication =null;
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
GC.WaitForPendingFinalizers();
}
returnresult;
}

Excel转换方法

privateboolConvert(stringsourcePath,stringtargetPath, XlFixedFormatType targetType)
{
boolresult;
objectmissing = Type.Missing;
ApplicationClass application =null;
Workbook workBook =null;
try
{
application =newApplicationClass();
objecttarget = targetPath;
objecttype = targetType;
workBook = application.Workbooks.Open(sourcePath, missing, missing, missing, missing, missing,
missing, missing, missing, missing, missing, missing, missing, missing, missing);

workBook.ExportAsFixedFormat(targetType, target, XlFixedFormatQuality.xlQualityStandard,true,false, missing, missing, missing, missing);
result =true;
}
catch
{
result =false;
}
finally
{
if(workBook !=null)
{
workBook.Close(true, missing, missing);
workBook =null;
}
if(application !=null)
{
application.Quit();
application =null;
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
GC.WaitForPendingFinalizers();
}
returnresult;
}

PowerPoint转换方法

privateboolConvert(stringsourcePath,stringtargetPath, PpSaveAsFileType targetFileType)
{
boolresult;
objectmissing = Type.Missing;
ApplicationClass application =null;
Presentation persentation =null;
try
{
application =newApplicationClass();
persentation = application.Presentations.Open(sourcePath, MsoTriState.msoTrue, MsoTriState.msoFalse, MsoTriState.msoFalse);
persentation.SaveAs(targetPath, targetFileType, Microsoft.Office.Core.MsoTriState.msoTrue);

result =true;
}
catch
{
result =false;
}
finally
{
if(persentation !=null)
{
persentation.Close();
persentation =null;
}
if(application !=null)
{
application.Quit();
application =null;
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
GC.WaitForPendingFinalizers();
}
returnresult;
}

如果是word文档或者Excel文档想要转换xps格式，我们还可以有一种方法，那就是利用xps虚拟打印机实现。

安装了.NetFrameWork3.5之后，默认会在系统中安装XPS虚拟打印机，我们将其设置为默认打印机。

Microsoft XPS Document Writer

word文档打印为xps

publicvoidPrintWord(stringwordfile)
{
oWord.ApplicationClass word =newoWord.ApplicationClass();
Type wordType = word.GetType();

//打开WORD文档
oWord.Documents docs = word.Documents;
Type docsType = docs.GetType();
objectobjDocName = wordfile;
oWord.Document doc = (oWord.Document)docsType.InvokeMember("Open", System.Reflection.BindingFlags.InvokeMethod,null, docs,newObject[] { objDocName,true,true});

//打印输出到指定文件
//可以使用 doc.PrintOut();方法,次方法调用中的参数设置较繁琐,建议使用 Type.InvokeMember 来调用时可以不用将PrintOut的参数设置全,只设置4个主要参数
Type docType = doc.GetType();
objectprintFileName = wordfile +".xps";
docType.InvokeMember("PrintOut", System.Reflection.BindingFlags.InvokeMethod,null, doc,newobject[] {false,false, oWord.WdPrintOutRange.wdPrintAllDocument, printFileName });

//退出WORD
wordType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod,null, word,null);
}

Excel利用虚拟打印机转换为xps

publicvoidPrintExcel(stringexeclfile)
{
Excel.ApplicationClass eapp =newExcel.ApplicationClass();
Type eType = eapp.GetType();
Excel.Workbooks Ewb = eapp.Workbooks;
Type elType = Ewb.GetType();
objectobjelName = execlfile;
Excel.Workbook ebook = (Excel.Workbook)elType.InvokeMember("Open", System.Reflection.BindingFlags.InvokeMethod,null, Ewb,newObject[] { objelName,true,true});

objectprintFileName = execlfile +".xps";

Object oMissing = System.Reflection.Missing.Value;
ebook.PrintOut(oMissing, oMissing, oMissing, oMissing, oMissing,true, oMissing, printFileName);

eType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod,null, eapp,null);
}

，同样，如果系统安装了PDF虚拟打印机，如5D PDF之类的，我们也可以将其设置为默认打印机以达到转换为PDF格式的目的

我们可以将这些方法放在windows service里面，实现文档的后台转换。

本文出自 “Sean Li 技术成就梦想！” 博客，请务必保留此出处http://seanli888.blog.51cto.com/345958/112268